help with 8th-grade math

Help With 8th-grade Math

Answers

Answer 1
20.

60 + ( x + 20 ) + 3x = 180
80 + 4x = 180
-80. -80
4x = 100
X = 25
X + 20 = 45
3x = 75



21.
X - 5 + x + 35 + 1.4x + x = 360
4.4x + 30 = 360
. - 30. - 30
4.4x = 330
X = 75
X + 35 = 110
1.4x = 105
X - 5 = 70
Answer 2

Answer:

h=V/lw

Step-by-step explanation:

1. Since your trying to get h by itself, divide both sides by lw.

2. You will know have lwh divided by lw and V divided by lw.

3. you cross out the lw next to the h because the division cancels it.

4. Now you have h=V/lw.


Related Questions

Convert to a fraction in simplest terms: .45

Answers

Answer:

9/20

Step-by-step explanation:

9/20 is the answwrrrr

Help please with this math problem

Answers

The first part you would add the -1/16 with -11/16 to get an answer of -12/16. Fill in the first blank from the left to be 11 so it is 11/16. The other blank in that row should be a 1 like it is in the original equation.
Second row blank would become 12 because 11+1 =12. The third row of blanks would then simplify 12/16 to be 3/4 because both 12 and 16 can be divided by 4 to make 3 and 4 respectively.
-3/4 + -1/4 equals -1 because -4/4 simplifies to -1.

Answer:

3

Step-by-step explanation:

Hey can you help me thanks its due today!!! :DPLZZZZ


1. A quotient is negative if the divisor and the dividend have______sgins.


2. A quotient is positive if the divisor and the dividend have_____sgins


3.Jared lost a total of $9.00 on his investment over 2 months. He lost an equal amount of money each month.What expression represents the amount of money he lost per month?What does yous answer tell us?


4.Grandpa Ernie is shrinking! Over the past 4n years, his height decreased by a total of 2.4 cm. It decreased by the same amount each year. What was the change in Grandpa Ernie's height each year? Show all your work.

Answers

1. Negative
2. Positive
3. 9=2m m= the money he lost each month. M= 4.50, Jared lost $4.50 each month
4. He lost 0.6 cm each year. You divide 2.4 ( the total height lost) by 4 ( the amount of time) and get 0.6 ( the height he lost each year)

Hope this is helpful!
The answer to the first question is equal signs

help 1st person gets brainlist more info inside the file / picture

Answers

Answer:

b. 28000 times 400 equals 11200000

c.9000 times 60 equals 540000

d.900 times 600 equals 540000

e. 40000 times 500 equals 20000000

Step-by-step explanation:

A gallon of gold weighs 160.7 pounds, while a gallon of silver weighs 87.6 pounds. How many pounds would 6.2 containers weigh if each container held a gallon of gold and a gallon of silver?
A.1,573.66 pounds
B.1,743.22pounds
C.14,620.22 pounds
D.1,539.46pounds

Answers

Answer:

The answer is D.

Step-by-step explanation:

First, you would multiply 160.7x6.2. The answer would be 996.34. Next, you would also multiply 87.6x6.2. This is equal to 543.12. You would then add these two products together and get a total of 1539.46 pounds.

D.............1,539.46pounds

1 yard = 3 feet and 1 mile = 5280 feet, how many yards are there in 3 miles?

Answers

Answer: 5280 yards

Explanation: There are 1760 yards in a mile. So to find out how many yards there are in 3 miles, you multiply 3 by 1760 and you get 5280 yard.

A vendor has 10 balloons for sale: 5 are yellow, 2 are red, and 3 are green. A balloon is selected at random and sold. If the balloon sold is yellow, what is the probability that the next balloon selected at random is also yellow? (5 points)

Group of answer choices

fraction 5 over 10

fraction 5 over 9

fraction 4 over 9

fraction 4 over 10

Answers

Answer:

fraction 4 over 9

Step-by-step explanation:

This is because there is one less yellow balloon and one less balloon in total.

Answer:

There are 9 balloons remaining, of which 4 are yellow. therefore the probability that the next balloon is also yellow is 4/9

What is X?

I'm too lazy to do math today...

Answers

Answer:

x=10

Step-by-step explanation:

because since the objects are similar, you subtract 4 from 9 to get five. Then subtract 5 from 15.

Answer:

6 2/3

Step-by-step explanation:

Describe why alternate interior angles are not always congruent?

Answers

Answer: Angles on opposite sides of a transversal, but inside the lines it intersects.

Step-by-step explanation:

I’m not 1000% sure if the answer but hey you should do your own work bud

An average fly has a mass of $0.048$ grams. An average ant has a mass of $3.12\ \times\ 10^{-3}$ grams.

Would $3.99$ million flies or $47,000,000$ ants have a greater mass?
Approximately how much greater, in grams, would the greater mass be? Justify your answers.

Answers

Answer:

i already told u the answer you can find it on ur profile

Step-by-step explanation:

All I can do is to cheer you up. Good luck!

Which choice best represents the standard form representation of the following expression?


1/3(12 + 6x)


Question 5 options:


2 + -4x



2 + 4x



4 + -2x



4 + 2x

Answers

Answer:

6x

Step-by-step explanation:

(4+2x)
You first multiply 1/3 by 12 and get 4 then multiply 1/3 by 6X and get 2x.
I hope it helps

2 +4 +5+400+888+953
what is it

Answers

The answer is 2,254!
The answer to this question is 2252

What is the first thing you would do to solve this equation?
3x + 7 = -2 + 5x

Answers

take 7-2 to get 5 now you have 3x +5 is equal to 5x

What If? The rules for multiplying two integers can be extended to a product of 3 or more integers. Find the following products by using the Associative Property to multiply 2 numbers at a time. a. 3(3)(–3) b. 3(–3)(–3 ) c. –3(–3)(–3 ) d. 3(3)(3)(–3 ) e. 3(3)(–3)(–3) f. 3(–3)(–3)(–3)

Answers

Answer:

Your answer is:

A= -27

B= 27

C= -27

D= -81

E= 81

F= -81

Step-by-step explanation:

Hope this helped : )

It would honestly probably equal like or something you know

Isabella has has 48 roses, 32 daisies, and 24 tulips. How many bouquets can she make if each boquet must have the same number of each flower and all flowers are used? This is an LCM problem. (least common multiple)

Answers

Answer:

96 is your answer

Step-by-step explanation:

mark brainliest

Answer:

8

Step-by-step explanation:

2 x 2 x 2 = 8

Suppose your heart beats 70 times a minute. Combine the time it will take for it to beat 1 million times.

Answers

Answer:

For example, if your heart beats 72 times per minute, 70 beats per minute would give a reasonable estimate. Next find how many days it takes for 1 million heartbeats: 1,000,000 ÷ 100,000 = 10. Thus, 1,000,000 beats take 10 days.

Step-by-step explanation:

Answer:

14285.7142857

Step-by-step explanation:

1,000,000 divided by 70 equals 14285.7142857

~~Hope this helps~~~ :)

is 8 4/9 a rational number

Answers

Answer:

8 4/9 is rational

It is rational because I dont know why but I just know its rational

Answer:

Yes, because an integer is being divided by another integer.

Step-by-step explanation:

Help pls i really need this!!

Answers

Answer: the answer is A

Step-by-step explanation: 400 times 2.5 is 1000 and 250 times 2.5 is 625 and together they equal 1625

Zoe wrote Three-fifths of her essay in 30 minutes. Assuming she wrote the paper at a constant rate the entire time, which expression can be used to determine the fraction of her essay she wrote each minute?
30 divided by three-fifths
30 times three-fifths
Three-fifths divided by 30
Five-thirds divided by 30

Answers

Answer:

Three-fifths divided by 30

Step-by-step explanation:

3/5 is what she did in 30 minutes so to get what she did per minute, you divide by the number of minutes.

Answer:

Three-fifths divided by 30

In a piggy bank, there are 13 dimes and 19 pennies. Find the percentage of each coin.

20 points

Answers

Answer:

About 40% dimes and 60% pennies

Step-by-step explanation:

40% dimes i think 50% for pennies.sorry if I’m wrong I tried :)

ANSWER FAST PLZZZZZZZWhich expression can be used to find the value of the expression below?

Answers

the answer is c

hope this helps

i think it’s C (-6/10)+2/8

Pablo wishes to grow his baseball card collection to at least 3000 cards. He currently has 1200 cards and knows that his favorite type of cards have 15 cards per package. Which inequality and solution represent the number of packages of cards that Pablo wishes to buy? Select TWO that apply.
A
p+1200≥3000p≥1800

B
15p+1200≥3000p≥120

C
1200+15p≥3000p≥280

D
3000≤1200+15p120≤p

E
3000≤1200+15p120≥p

F
3000≤15p+1200280≤p

Answers

Answer:

x-20  atleast right

Step-by-step explanation:

:)

Help fast Pleaseeee Please show all workkkkk

Answers

Answer:

sorry

Step-by-step explanation:

i have literally no idea

3. In a nature conservatory, the ratio of butterflies to total number of flying insects is 36 to 100. There are 450 total flying insects.

(a) Create a table for how many butterflies there are for 1, 50, and 100 flying insects. Show your work.

(b) How many butterflies are in the conservatory? Show your work.

pls answer asap

Answers

Answer:

1. I'm not sure how many butterflies there will be for 1, but for for 50 flying inescts there will be 18 butterflies. For 100 flying insects there will be 36 butterflies.

2. There are 162 butterflies in the conservatory

Step-by-step explanation:

Q. You have 7 people in your work group. If you each worked 38 hours during last week, how many total hours were worked by the group? _____ hours

Answers

7x38=266 you have 266 total hours.
the total is 266 hours

PLZ HELP DUE TODAY AND IDK HOW TO DO IT PLZ
The high school's lunch menu repeats every 6 school days. The middle school lunch menu repeats every 8 school days. On March 5th, both schools served chicken wraps.


What is the next calendar date on which both schools will serve chicken wraps?

Answers

Answer:

April 8th

Step-by-step explanation:

yall fr please help, this was due yesterday and im trynna turn it in

Answers

Answer:

7d 8e 9c 10a 11b

Step-by-step explanation:

PLEASE HELPPP!!!!!



Simplify: 22 + 8 ÷ (2 x 4)


10


5


8


4

Answers

Answer:

23

Step-by-step explanation:

How many different variables are in the expression 8r-1+9r-2(q-1)+11 ? Name each variable

Answers

Answer: there is 2 different variables r and q

Step-by-step explanation:

Which answer choice represents an equivalent number sentence of "15 + (3 - 8)"?
A. 15 - 5
B. 18 + 8
C. 10
D. 12 - 8

Answers

Answer:

A- 15-5 is the same

Step-by-step explanation:

15 + (3-8)

15 + (-5)

15-5

i believe the answer is C
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